Abstract: A fingernail brush that includes bristles that are angularly adjustable by a user of the brush. In one embodiment, the fingernail brush includes a housing and a bristle assembly having a bristle support and at least one row of bristles. The bristle assembly is rotatably coupled to the housing so that a user can rotate the bristles to a desired relative bristle angle. In some embodiments, the bristles are present in a bristle channel formed as a recess in a face of the housing. The angular adjustability of the bristles allows a user to set the bristles to a relative bristle angle appropriate for the way the user intends to orient their fingertips relative to the fingernail brush. In some embodiments, a fingernail brush of the present disclosure may include one or more vibration generators that cause bristles to vibrate at a sonic frequency, an ultrasonic frequency, or both, to enhance cleaning efficacy.

Abstract: A fingernail brush that includes bristles that are angularly adjustable by a user of the brush. In one embodiment, the fingernail brush includes a housing and a bristle assembly having a bristle support and at least one row of bristles. The bristle assembly is rotatably coupled to the housing so that a user can rotate the bristles to a desired relative bristle angle. In some embodiments, the bristles are present in a bristle channel formed as a recess in a face of the housing. The angular adjustability of the bristles allows a user to set the bristles to a relative bristle angle appropriate for the way the user intends to orient their fingertips relative to the fingernail brush. In some embodiments, a fingernail brush of the present disclosure may include one or more vibration generators that cause bristles to vibrate at a sonic frequency, an ultrasonic frequency, or both, to enhance cleaning efficacy.

Abstract: A fingernail brush that includes bristles that are angularly adjustable by a user of the brush. In one embodiment, the fingernail brush includes a housing and a bristle assembly having a bristle support and at least one row of bristles. The bristle assembly is rotatably coupled to the housing so that a user can rotate the bristles to a desired relative bristle angle. In some embodiments, the bristles are present in a bristle channel formed as a recess in a face of the housing. The angular adjustability of the bristles allows a user to set the bristles to a relative bristle angle appropriate for the way the user intends to orient their fingertips relative to the fingernail brush. In some embodiments, a fingernail brush of the present disclosure may include one or more vibration generators that cause bristles to vibrate at a sonic frequency, an ultrasonic frequency, or both, to enhance cleaning efficacy.

Abstract: This invention provides an ultrasonically driven nail cleaner, where the ultrasonic frequency both loosens hand and nail soil, as well as providing motion to at least a pair of brushes for removing the soil from the user's hands and nails. The moving force for the brushes and the ultrasonic loosening action are enabled by linkages providing straight line bilateral motion for both of the brushes. A rechargeable battery and a battery charger are provided for multiple uses for the structure provided, without the necessity of an AC outlet proximate the user.

Abstract: This invention provides an ultrasonically driven nail cleaner, where the ultrasonic frequency both loosens hand and nail soil, as well as providing motion to at least a pair of brushes for removing the soil from the user's hands and nails. The moving force for the brushes and the ultrasonic loosening action are enabled by linkages providing straight line bilateral motion for both of the brushes. A rechargeable battery and a battery charger are provided for multiple uses for the structure provided, without the necessity of an AC outlet proximate the user.